Re: [PATCH 0/7] memory: renesas-rpc-if: Optimize transfer overhead and implement runtime PM autosuspend

[Lad, Prabhakar]

Hi Krzysztof,

On Sun, Jul 19, 2026 at 3:42 PM Krzysztof Kozlowski <krzk@xxxxxxxxxx> wrote:
>
> On 16/07/2026 00:24, Prabhakar wrote:
> > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
> >
> > Hi all,
> >
> > This patch series optimizes the Renesas RPC-IF driver by significantly
> > reducing software overhead in both the direct memory-mapped (dirmap) and
> > manual transfer paths, maximizing transaction throughput, and introducing
> > runtime PM autosuspend to prevent aggressive power gating during
> > consecutive flash operations.
>
> Why is spi patch in the middle of the set without any explanation of
> merging dependencies/order?
>
The rpc-if core driver acts as the low-level controller wrapper used
by spi-rpc-if. In this series, autosuspend is enabled in the SPI
driver, while the corresponding pm_runtime_put_autosuspend() calls are
added in the core wrapper driver.

Apologies for missing this explanation in the cover letter. Since
these changes do not break build or runtime bisectability if applied
independently, the rpc-if and spi-rpc-if patches can safely go through
separate maintainer trees.

Mark has already Acked the SPI patch. I will check if he is OK with
the SPI driver changes going via the memory tree. If not, I will
update the cover letter and split the patches up to send them
separately in v2.

Cheers,
Prabhakar